POR15, undercoat, or sprayon bedliner?

POR-15, but I think I'm going to try the Eastwood Encapsulator paint because several people now have told me they like it better than the POR-15. I hope the lid is easier to open than the POR-15 one!

You can paint over POR-15, just read the data sheet, follow the directions and it's not an issue.

http://www.por15.com/Data Sheets/POR15ApplicationInfo.pdf

Read the tip sheets too. Basically, just read about how to do it like with anything else. (all at the below link)

http://www.por15.com/quickindex.asp